1" 2" 4" Sewage Disposal Rubber Duckbill Check Valve - 50mm to 3000mm Diameter Range with 30+ Year Lifespan
The Sewage Disposal Duckbill Check Valve is a full-rubber structure valve featuring a duckbill shape design with "forward flow, reverse check" functionality. Engineered for corrosion and aging resistance, this valve offers superior performance in water supply and drainage applications.
- Clamp Type: Installed at the outlet of drain pipes
- Flange Type: Mounted at flange-equipped drain pipe outlets
- Installation Plate Type: Fixed on structural components at water outlet ends
- Built-in Type: Integrated with urban rainwater sewage system outlets
- Mortar and Cement Pipeline Type: Installed at the end of mortar and cement pipelines
During forward operation, water flows into the inlet, opening the valve with minimal pressure. Higher water pressure increases valve opening and flow rate. During reverse operation, the valve port naturally closes and seals, with increased backpressure enhancing sealing effectiveness.
| Type | Nominal Diameter (mm) | Length L (mm) | Height H (mm) | Flange Diameter C (mm) |
|---|---|---|---|---|
| XF50-158-T | 50 | 158 | 100 | 25 |
| XF80-232-T | 80 | 232 | 140 | 40 |
| XF100-270-T | 100 | 270 | 200 | 40 |
| XF150-360-T | 150 | 360 | 265 | 50 |
| XF200-450-T | 200 | 450 | 325 | 50 |
| XF250-560-T | 250 | 560 | 425 | 75 |
| XF300-650-T | 300 | 650 | 525 | 115 |
| XF350-750-T | 350 | 750 | 625 | 115 |
| XF400-850-T | 400 | 850 | 725 | 135 |
| XF450-950-T | 450 | 950 | 825 | 150 |
| XF500-1060-T | 500 | 1060 | 925 | 200 |
| XF600-1200-T | 600 | 1200 | 1025 | 200 |
| XF700-1260-T | 700 | 1260 | 1125 | 200 |
| XF800-1450-T | 800 | 1450 | 1400 | 250 |
| XF900-1620-T | 900 | 1620 | 1525 | 250 |
| XF1000-1720-T | 1000 | 1720 | 1725 | 250 |
| XF1200-2010-T | 1200 | 2010 | 1950 | 300 |
| XF1400-2280-T | 1400 | 2280 | 2320 | 320 |
| XF1600-2600-T | 1600 | 2600 | 2650 | 350 |
| XF1800-2920-T | 1800 | 2920 | 2960 | 400 |
| XF2000-3150-T | 2000 | 3150 | 3300 | 450 |
| XF2200-3450-T | 2200 | 3450 | 3580 | 500 |
| XF2400-3760-T | 2400 | 3760 | 3925 | 550 |
| XF2600-3900-T | 2600 | 3900 | 4250 | 600 |
| XF2800-4200-T | 2800 | 4200 | 4580 | 650 |
| XF3000-4500-T | 3000 | 4500 | 4990 | 700 |
- High Load Capacity: Withstands vehicle traffic and heavy object stacking without performance degradation
- Superior Corrosion Resistance: Service life exceeding 30 years in demanding environments
- Enhanced Durability: Omnidirectional protection rubber joints extend operational lifespan
Widely used in municipal, water conservancy, and wastewater treatment discharge outlets to prevent backflow and reverse flow. This valve serves as an ideal replacement for traditional flap gates.
- Premium quality products at competitive pricing
- Extensive industry experience and technical expertise
- Short delivery timeframes with on-time shipment guarantees
- Custom requirements and specifications accommodated
Inner packaging: Plastic film protection followed by carton casing. Outer packaging: Secure export-grade plywood cases with customizable markings. Custom packaging available upon request.
- International express services (DHL, UPS, TNT, EMS)
- Flexible transportation methods based on schedule and budget requirements
- Customer-designated cargo agents accepted
A: Within 7-25 days after receiving prepayment
A: Yes, we provide comprehensive customization including product size, quality specifications, and quantity requirements
A: Yes, complimentary samples are available
A: Multiple options including T/T, L/C, D/P, Western Union, Paypal, and Trade Assurance
A: Products can be returned or replaced if quality issues arise during use
A: Yes, we welcome factory visits to inspect product quality and manufacturing processes
Get in Touch
Have questions about our products or want to discuss a custom order? Our team is ready to help you.